Box-lifter motion for looms



Jun l 1926.

- 1,587,086 E. SANTON ET AL BOX LIFTER MOTION FOR LOOMS Filed Nov. 18, 1924 Patented June 1, 1926.

UNITED I STATES PATENT OFFICE.

ELLIOT A. SANTON AND WILLIAM W. BASSETT, 0F WORCESTER, MASSACHUSETTS,

ASSIGNOBS TO CROMPTON & KNOWLES LOOM WORKS, OF WOBCESTER, MASSACHU- SETTS, A 'CORPORATIUN OF MASSACHUSETTS.

BOX-LIFTER .MOTION- FOR LOOMS.

'AppIication-filed November is, 1924. Serial No. 750,632.

This invention relates to improvements in box motions for looms and more particularly to the connection between the lifting lever and the box lifter rod.

In order to properly align the boxes of a loom with the shuttle race of the lay, it is necessary that some adjustment be provlded whereby the boxes maybe moved vertically with respect to the lay. It has been heretofore proposed to securethis adjustment by providing a turnbuckle in the box lifter rod, but such a construction has been found unsatisfactory because the two sections of the rod are not always in alignment for all adjusted positions. The boxes are provided with oppositely disposed long tongues which are guided in two spaced grooves and the lower end of the rod is guided in an apertureformed in the rocker iron. We have found that when the box lifter rod sections are out of alignment, the boxes stick in their bearings and do not move to the positions they should assume. I I

Accordingly, it is the principal part of our invention to provide a connection between the lifter lever and the box lifter rod which shall afford all necessary adjustments, the lifter rod and the boxes being alwaysin alignment with each other and undergoing no relative change when an adjustment is made.

It is a further object of our invention to provide a two part yielding connection be tween the lever and the lifter rod provided with a turnbuckle to afford very delicate adjustment of the boxes with respect to' therace of the lay.

It is a more particular object of our invention to provide a connector formed of two parts each of which has a pivot and connect ing said parts by a turnbuckle the axis of which is in substantial alignment with the.

lVith these and other objects in view which will appear as the description proceeds, our invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings wherein wehave shown one form of our invention Fig. 1 is. a side elevation of part of a loom having our invention applied thereto,

in a head 24 as indicated in Fig. 1.

Fig. 2 is a front portion of the constructionshown in Fig. 1 looking in the direction of arrow 2, Fig. 1,

Fig. 3 is a vertical section on line 3-3 of Fig. 1 looking in the direction of the arrow 3,

V Fig. 4 isv an enlarged elevation of a detail ofthe invention, parts being in section, and

Fig. 5 is an enlarged View of a portion of the box lifter connection.

In carrying out our invention, we provide .a loomside 10 and rocker shaft 11 on which is secured a rocker iron 12 which supports the picker stick 13 and has an upstanding arm 1% provided with a horizontal offset 15. Saidoiiset 15 is provided with an aperture or slide bearing 16 which receives the lower end of the boxlifter rod 17. Rod 17 has drilled therein a hole 18 which receives plunger19 normally seated in the hole by a spring 20 one end ofwhich rests againstthe lifting block 21 and the other end of which presses against shoulder 22 formed integral with the stud 19 as shown in Fig. l. Extending from, the block 21 is a stud 23 having a substantially square shank terminating 25 may be secured to the lifter rod 17. and is adj ustably mounted thereon to engage the upper portion of the block 21 to afiord a coarse adjustment for the box lifter rod.

Bolted to the frame 10 is a plate 26 from which extends astud 27 on which are mounted levers 28 and 29. The upper ends of the levers are operatively connected to vibrator nonnectors 30 and 31, respectively,by means of which said levers are oscillated on the stud 27. Links 32 and depend from levers 28 and 29, respectively, and have pivotal conmotion at their lower ends with a floating lifter lever 34. It is to be. understood that lever 34: may assume four vertical positions according to the positions of levers 2S and 29, said mechanism for lifting lever. 34 being substantially the same as set forth in Patent No. 551,104.

Our invention relates more particularly to the connection between the lever 3e and the stud 23 and in carrying out our invention, we provide the lever with a stud 40 on which is rotatablymounted the rod head 41 having an internal bore provided with left hand Collar 43 may bemoved any desired amount toward or away from the rod head 41. Member 49 is pivotally connected to member 43 by means of stud 50 which is secured in position by head 51 and cotter pin 52. Said members 43 and a9 areprovided with notches 53 and 54,

respectively, which are held in yielding engagement with a stud 23 by means of spring 55 interposed between the upper ends of the members.

Under normal conditions, when the boxes are free to move, the notches will communicate motion to the stud 23 which in turn will lift the rod 17. Should the motion of the box be resisted, the spring 55 will expand to permit theseparation of the members 43 and I 49 about stud 50 thereby disrupting the driving connectionv between said members and the lifter rod.

When it is desired to vary the adjustment of parts, oppositely threaded nuts 56 and 57, respectively, may be loosened, after which the turnbuckle can be adjusted either to raise or lower the boxes. It will be noted that the adjustment is independent of the lifter rod and that the latter is not disturbed in its relation to the boxes by'the adjustment.

\Ve find it desirable to arrange the parts 7 so that the axis of the turnbuckle is in alignment with the studs 40 and 50. By this arrangement the turning. of the turnbuckle also constructed so as to permit adjustments which in no way afiects the alignment of the box guides and the box lifter rod, the boxes and their rods operating as a unit for all of their adjusted positions. Also, by employing the turnbuckle 46 it is possible to secure very delicate adjustments.

will be apparent that changes and modifications may be made therein without departing from the spirit and scope of the invention and we do not wish to be limited to the details herein disclosed,.but what we claim 1. In a box motion for looms, a box lifting lever, a box lifter rod, a stud extending from and normally connected to the rod, a connecting link between the lever and the stud, said link having a two-part yielding portion in engagement with the stud, and

an adjustable connection between the twopart portion and the lever to vary the distance between the stud and said lever.

2. In a box motion for looms, a box lift ing lever, a box lifter rod, a lifting block on the. rod and normally locked thereto, a stud extending from said block, and a connecting link between the stud and the lever, said link comprising the lower portion pivot'ally connected to the lever and an upper two-part connection having yielding contact with the stud, and a threaded member be tween said stud and said lever to vary the distance between said stud and lever.

3. In a box motion for looms, a box lifting lever, a box lifter rod, and a connecting link between the lever and the rod, said link comprising a lower member pivotally connected to the lever" and an upper member yicldingly connected to the box lifter rod, and a threaded adjustable device between said upper and lower members to vary the distance between said members.

i. In a box motion for looms, a box lifting lever, a box lifter rod, and a connecting link between said lever and said rod, said link comprising a lower member pivotally connected to the leverand an upper member yieldingly connected to the rod, and a turnbuckle interposed between said members to vary the distance. between the same.

5. In a box motion for looms, a pair of bell crank levers, links depending from said bell crank levers, a one piece box lifting lever supported by said links, a box lifter to vary the distance between said members.

6. Ina box motion for looms, a pair of bell crank levers, links depending from said bell crank levers, a one piece box lifting lever supported by said links, a box lifter rod formed from a single piece of material, and a connecting link between the rod and the box lever, said link comprising a lower member pivotally connected to the box lever Having thus described our; lnventlon 1t and an upper member formed in two partsand having yielding connection with the box rod, and an adjustable connection between said upper and lower members to vary the distance between said members, said connection comprising a turnbuckle having opnected to the lever and an upper member formed in two parts having a common pivotal connection and yieldingly held together, and a turnbuckle extending between the members, the turnbuckle being substantially in alignment with the pivotal connection between the lever and the lower member and the common pivotal connection between the parts of the upper member.

8. In a box motion for looms, a box lifting lever, a box lifter rod, connections be- 7 tween said lever and rod, said connections comprising a lower member pivotally connected to the lever and an upper member, said members having internally oppositely threaded bores, a threaded connector between said members cooperating with said bores, and a third member pivoted to the upper member and yieldingly held thereto to establish an operative connection with the rod. In testimony whereof We have hereunto affixed our signatures.

ELLIOT A. SANTON.

WILLIAM WV. BASSETT. 

